Cristiano Ronaldo scored 13 minutes into his Champions League return for Manchester United but Ole Gunnar Solskjaer's 10-man side crashed to a 2-1 defeat at Young Boys of Switzerland on Tuesday.

Ronaldo turned in from a Bruno Fernandes cross to give United the lead in Bern but Aaron Wan-Bissaka was sent off on 35 minutes for a foul on Christopher Martins Pereira.

Swiss champions Young Boys equalised through Nicolas Moumi Ngamaleu midway through the second half before Jordan Siebatcheu hit a 95th-minute winner after Jesse Lingard's ill-advised backpass.

Manchester United's French midfielder Paul Pogba (C) reacts after Young Boys' US forward Jordy Siebatcheu Pefok (unseen) scored a goal

Manchester United's French midfielder Paul Pogba (C) fights for the ball with Young Boys' Luxembourgish midfielder Christopher Martins (R)

Young Boys' US forward Jordy Siebatcheu Pefok (C) celebrates after scoring a goal with teammates